cpumask: cpumask_of_pcibus for sh

Impact: new API

Somehow SH got missed: every other arch now has cpumask_of_pcibus.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 arch/sh/include/asm/topology.h |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h
--- a/arch/sh/include/asm/topology.h
+++ b/arch/sh/include/asm/topology.h
@@ -39,6 +39,9 @@
 					CPU_MASK_ALL : \
 					node_to_cpumask(pcibus_to_node(bus)) \
 				)
+#define cpumask_of_pcibus(bus)	(pcibus_to_node(bus) == -1 ? \
+				 cpu_all_mask : \
+				 cpumask_of_node(pcibus_to_node(bus)))
 #endif
 
 #include <asm-generic/topology.h>
